Favicon Generator

All sizes from one image

Drag & drop an image here

Use a square image at 512px or larger for the sharpest icons

Examples

From one logo

Input

logo.png (512×512)

Output

favicon.ico + 16–512px PNGs + manifest

Ready-to-paste head

Input

Generated set

Output

<link rel="icon" href="/favicon.ico" …>

What is Favicon Generator?

Favicon Generator is a tool that turns an ordinary image into a favicon - the small icon a browser shows in the tab, the bookmark bar, and the history list for your site. It takes a square PNG, JPG, or SVG and produces the correctly sized, correctly encoded icon files a website needs.

A favicon is not one file so much as a small set of them. Browsers ask for a tiny undefinedxundefined or undefinedxundefined icon for the tab, phones want a larger undefinedxundefined apple touch icon for the home screen, and the classic favicon.ico bundles a couple of small sizes for maximum compatibility. This tool decodes your source image once and re-encodes it into those sizes so you do not have to resize each one by hand.

Everything happens on this page. Your image is read with the browser's built-in file APIs and re-drawn at each size locally, so the picture never leaves your device and there is no account, watermark, or upload step.

Why use an online favicon generator?

You can technically make a favicon in an image editor, but it is fiddly. You have to resize the artwork to several exact pixel dimensions, export each one, and in some editors wrestle with the older .ico container format that few apps write cleanly. For a one-off icon that is a lot of manual steps.

An online generator does the resizing and encoding for you in seconds, on any operating system, with nothing but a browser tab. The usual catch with web tools is privacy: most favicon sites upload your logo to a server to process it. That is a poor fit for an unreleased brand mark or a client logo you would rather not hand to a stranger. Dev Nexus works differently - the whole job runs in your browser using the same canvas technology that draws images on the web. Nothing is uploaded, logged, or retained, so your artwork stays private and the tool keeps working even when you are offline.

How to create a favicon

The flow is quick. Start with a square source image - ideally undefinedxundefined or larger - so the icon stays sharp when it is scaled up for phones. Drop it onto the tool or click to pick it from your device, and it loads immediately with a preview.

Next, look at how the artwork holds up at small sizes. A favicon can be as small as undefinedxundefined pixels, so thin lines, small text, and busy detail tend to disappear. A bold symbol, a single letter, or a simple mark almost always reads better than a shrunken full logo.

Generate the icons and the tool re-draws your image at each favicon size and encodes the files. Download the result, place the files in your site's root directory, and link them from your HTML <head>. Every step happens locally, so even a large source image stays on your machine. If your source is not square yet, crop it first, or convert an odd format with Image Converter before you start.

Favicon sizes and formats

A modern site does not need dozens of icons, just a sensible few:

favicon.ico (undefinedxundefined and undefinedxundefined): the classic fallback every browser understands, still worth including in your site root.
undefinedxundefined PNG: the crisp tab icon most desktop browsers actually display.
undefinedxundefined PNG (apple touch icon): used when someone saves your site to an iPhone or iPad home screen.
undefinedxundefined and undefinedxundefined PNG: referenced from a web app manifest for Android and installable web apps.
SVG favicon: an optional scalable icon that stays sharp at any size and can adapt to dark mode.

PNG is the practical default for the individual sizes because it is lossless and supports transparency, which keeps edges clean against any tab colour. The .ico file is only there for maximum compatibility with older software.

Common use cases

Generating a favicon solves a lot of small but visible problems:

Launching a new site: replace the blank default icon with your brand mark before you go live.
Rebranding: swap in a new logo across the tab, bookmarks, and phone home screens in one pass.
Building a web app: produce the undefinedxundefined and undefinedxundefined icons a manifest needs for an installable app.
Client work: turn a supplied logo into a full icon set without uploading it to a third-party service.
Personal projects and demos: give a side project a polished, professional touch in a couple of minutes.
Fixing a fuzzy favicon: regenerate from a high-resolution original so the icon looks sharp on modern displays.

Tips & best practices

A few pointers to get the best results:

Start square and large. Feed the tool a square image of undefinedxundefined or more so every generated size is sharp, including the big phone icon.
Design for undefined pixels. Test how the mark looks tiny. Simplify to a bold symbol or single letter if a full logo turns to mush.
Use transparency where it helps. A transparent PNG background lets the icon sit cleanly on any tab colour and in both light and dark themes.
Keep the file in your site root. Browsers look for /favicon.ico by default, so placing it there gives you a fallback even without a link tag.
Link the sizes explicitly. Add <link rel="icon"> and <link rel="apple-touch-icon"> tags in your <head> so browsers pick the right icon for each context.
Bust the cache after a change. Browsers cache favicons aggressively, so hard-refresh or rename the file if an update does not show up right away.

Frequently asked questions

Is my image uploaded to a server?

No. The entire process happens locally in your browser. Your image is read and re-drawn into favicon sizes on your device and never sent anywhere, so it is safe for unreleased logos and client artwork, and it works offline.

What size image should I start with?

Start with a square image that is at least 512x512 pixels. A larger square source keeps every generated size sharp, including the 180x180 apple touch icon used on phone home screens.

What favicon sizes do I actually need?

For most sites a 16x16 and 32x32 favicon, a 180x180 apple touch icon, and 192x192 plus 512x512 icons for a web app manifest cover every common case. A single .ico in your site root is a good fallback too.

Should my favicon be a PNG or an ICO?

Both have a place. PNG is the practical choice for the individual sizes because it is lossless and supports transparency, while a favicon.ico in your site root gives you a fallback that every browser, old or new, understands.

How do I add the favicon to my website?

Place the files in your site's root directory and add link tags in the HTML head, such as <link rel="icon" href="/favicon.ico"> and <link rel="apple-touch-icon" href="/apple-touch-icon.png">.

Why is my new favicon not showing up?

Browsers cache favicons aggressively. Hard-refresh the page, clear the site's cache, or rename the icon file so the browser fetches the new version instead of the old cached one.

Can I make a favicon from a logo with transparency?

Yes. Use a transparent PNG or SVG so the icon has no background box. That lets it sit cleanly on any tab colour and look right in both light and dark browser themes.